Title :
Domain studies on mechanically alloyed Fe-Zr-B-Cu-nanocrystalline powder
Author :
Schäfer, R. ; Roth, S. ; Stiller, C. ; Eckert, J. ; Klement, U. ; Schultz, L.
Author_Institution :
IFW Dresden, Germany
fDate :
9/1/1996 12:00:00 AM
Abstract :
Soft magnetic FeZrBCu-particles with a grain structure in the nanometer range and a coercivity of about 600 A/cm were fabricated by mechanical alloying and subsequent annealing. Domain observation by high resolution Kerr microscopy shows a patch domain structure and a inhomogeneous distribution of coercivity across the particle diameter, indicating the existence of strong inhomogeneous long-range stresses in addition to atomic level microstress. The strong stress together with an inhomogeneous microstructure is believed to be responsible for the poor soft magnetic properties of the material
Keywords :
Kerr magneto-optical effect; boron alloys; coercive force; copper alloys; crystal microstructure; ferromagnetic materials; grain size; iron alloys; magnetic domains; magnetic particles; materials preparation; mechanical alloying; nanostructured materials; soft magnetic materials; zirconium alloys; Fe-Zr-B-Cu; annealing; atomic level microstress; coercivity; domain structure; grain structure; high resolution Kerr microscopy; mechanical alloying; mechanically alloyed Fe-Zr-B-Cu-nanocrystalline powder; patch domain structure; poor soft magnetic properties; soft magnetic FeZrBCu-particles; Alloying; Annealing; Coercive force; Magnetic domains; Magnetic materials; Microscopy; Microstructure; Nanostructures; Soft magnetic materials; Stress;
Journal_Title :
Magnetics, IEEE Transactions on
